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Texas Instruments CD74HC02E — Discrete Semiconductors
Texas Instruments

CD74HC02E NOR Gate, 15ns @ 6V, 14-DIP, Active

MPNCD74HC02E
End of Life

Texas Instruments 74HC series CD74HC02E, Quad 2-Input NOR Gate, Through Hole, 14-DIP (0.300", 7.62mm), 2V to 6V supply, -55°C to 125°C, 15ns @ 6V/50pF propagation delay.

$0.5Ref. price · indicative, final on quote
CD74HC02E datasheet
Packaging14-DIP (0.300", 7.62mm)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
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Specifications

CD74HC02E Technical Specifications
ParameterValue
Series74HC
Logic typeNOR Gate
Mounting typeThrough Hole
Voltage2V ~ 6V
Current - quiescent2 µA
Current - output high, low5.2mA, 5.2mA
Number of inputs2
Operating temperature-55°C ~ 125°C
PackageTube
Case14-DIP (0.300\", 7.62mm)
Number of circuits4
Input logic level - low0.5V ~ 1.8V
Input logic level - high1.5V ~ 4.2V
Max propagation delay @ v, max CL15ns @ 6V, 50pF

Product details

Quad 2-input NOR gate for general-purpose logic

The CD74HC02E is a quad 2-input NOR gate from the 74HC series. It packages four independent NOR gates in a 14-pin DIP (0.300" body) for through-hole assembly. Each gate accepts two inputs and delivers a NOR output, with a propagation delay of 15 ns at 6 V driving a 50 pF load. The supply range spans 2 V to 6 V. Output sink and source capability is 5.2 mA per gate.

Military temperature grade — deployment context

The -55°C to 125°C operating temperature range qualifies this part for military, aerospace, and downhole instrumentation. The 14-DIP package is socket-friendly, easing field replacement during board rework or prototype iteration.

Sourcing and lifecycle

It is ROHS3 compliant (cites). No official second-source alternate is listed in the record, but the 74HC family is broadly second-sourced by multiple manufacturers; a pin-compatible NOR gate from another vendor can be qualified for dual-sourcing if needed.

Frequently asked questions

Is CD74HC02E RoHS compliant?

Yes, it is ROHS3 compliant.

What is the difference between CD74HC02E and CD74HCT02E?

The CD74HC02E uses standard HC input thresholds (0.5V–1.8V low, 1.5V–4.2V high at 2V–6V supply), while the HCT variant has TTL-compatible thresholds for direct interfacing with 5V TTL logic. For 5V-only systems, HCT may be preferred; for mixed-voltage or battery-operated designs, HC offers wider supply flexibility.

Can CD74HC02E be used in high-temperature applications?

Yes, its -55°C to 125°C operating range covers military, automotive under-hood, and downhole environments.